From 05b8fc498ee6d5593559b242c1061f94d378f59b Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 8 Feb 2022 22:27:17 +0900
Subject: [PATCH] network: skip to set IPv6LL address generation mode if the
 requested mode is already set

---
 src/network/networkd-setlink.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/network/networkd-setlink.c b/src/network/networkd-setlink.c
index 514833e420..7540f6f60f 100644
--- a/src/network/networkd-setlink.c
+++ b/src/network/networkd-setlink.c
@@ -685,6 +685,9 @@ int link_request_to_set_addrgen_mode(Link *link) {
 
         mode = link_get_ipv6ll_addrgen_mode(link);
 
+        if (mode == link->ipv6ll_address_gen_mode)
+                return 0;
+
         r = link_request_set_link(link, SET_LINK_ADDRESS_GENERATION_MODE, link_set_addrgen_mode_handler, &req);
         if (r < 0)
                 return r;